ICD-10 Code F19.131 – Other psychoactive substance abuse with withdrawal delirium (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code F19.131 – Other psychoactive substance abuse with withdrawal delirium
What it is
This code identifies abuse of an unspecified psychoactive substance with withdrawal delirium. It means the patient has delirium caused by stopping or reducing use after problematic substance use.
Clinical signs
Typical findings include acute confusion, reduced awareness, disorganized thinking, and fluctuating attention during withdrawal. Clinical features vary; refer to documentation.
When to use this code
Use this code when the record clearly states psychoactive substance abuse and documents withdrawal delirium. Code the specific substance only if it is identified; otherwise, this category captures the non-specific psychoactive substance use disorder.
It is appropriate when delirium is attributed to withdrawal, not intoxication or another medical cause. Check documentation for provider linkage between the withdrawal state and the delirium.
Do not use for
Do not use it for simple withdrawal without delirium, intoxication, or substance use that is not described as abuse. Do not assume the code if the substance or diagnosis is unclear.
Coding tip
Confirm both the abuse diagnosis and the delirium-with-withdrawal relationship in the note before assigning F19.131.